Goodwill and Other Intangible Assets - Summary of Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Thousands	Apr. 30, 2019	Oct. 31, 2018
Finite Lived Intangible Assets [Line Items]
Carrying Amount	$ 742,513	$ 743,294
Accumulated Amortization	271,306	243,553
Net Book Value	471,207	499,741
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	479,391	480,404
Accumulated Amortization	155,876	137,640
Net Book Value	323,515	342,764
Patent/Technology Costs [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	153,942	153,602
Accumulated Amortization	65,845	59,845
Net Book Value	88,097	93,757
Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	96,274	96,433
Accumulated Amortization	38,039	34,768
Net Book Value	58,235	61,665
Non-compete Agreements [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	11,512	11,469
Accumulated Amortization	10,156	9,919
Net Book Value	1,356	1,550
Other [Member]
Finite Lived Intangible Assets [Line Items]
Carrying Amount	1,394	1,386
Accumulated Amortization	1,390	1,381
Net Book Value	$ 4	$ 5